/* 公共样式 */
.u-f,
.u-f-ac,
.u-f-ajc {
	display: flex;
}

.u-f-ac,
.u-f-ajc {
	align-items: center; //垂直居中
}

.u-f-ajc {
	justify-content: center;
}

.u-f-ac,
.u-f-jsb {
	justify-content: space-between; //左右两边靠边
}
